Source code of Windows XP (NT5)
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/*++
Copyright (c) 1996 Microsoft Corporation
Module Name :
isplat.cxx
Abstract:
This module defines functions for determining platform types
Author:
Johnson Apacible (johnsona) 19-Nov-1996
--*/
#include <nt.h>
#include <ntrtl.h>
#include <nturtl.h>
#include <windows.h>
#include <isplat.h>
#include <inetsvcs.h>
PLATFORM_TYPE TsPlatformType = PtInvalid;
typedef
BOOLEAN
(NTAPI *GET_PRODUCT_TYPE)(
PNT_PRODUCT_TYPE
);
PLATFORM_TYPE
IISGetPlatformType(
VOID
)
/*++
This function consults the registry and determines the platform type
for this machine.
Arguments:
None
Returns:
Platform type
--*/
{
PLATFORM_TYPE pt;
LONG result;
HKEY keyHandle;
WCHAR productType[30];
DWORD type;
BOOL isNt = TRUE;
OSVERSIONINFO osInfo;
//
// See if the platform type has already been discovered.
//
if ( TsPlatformType != PtInvalid ) {
return(TsPlatformType);
}
//
// see if this is win95
//
osInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
if ( GetVersionEx( &osInfo ) ) {
isNt = (osInfo.dwPlatformId == VER_PLATFORM_WIN32_NT);
} else {
IIS_PRINTF((buff,"GetVersionEx failed with %d\n",
GetLastError()));
}
if ( isNt ) {
HINSTANCE hNtdll;
NT_PRODUCT_TYPE ntType;
GET_PRODUCT_TYPE pfnGetProductType;
//
// Get the product type from the system
//
pt = PtNtWorkstation;
hNtdll = LoadLibrary("ntdll.dll");
if ( hNtdll != NULL ) {
pfnGetProductType = (GET_PRODUCT_TYPE)
GetProcAddress(hNtdll, "RtlGetNtProductType");
if ( (pfnGetProductType != NULL) &&
pfnGetProductType( &ntType ) ) {
if ( (ntType == NtProductLanManNt) ||
(ntType == NtProductServer) ) {
pt = PtNtServer;
}
}
FreeLibrary( hNtdll );
}
} else {
pt = PtWindows95;
}
TsPlatformType = pt;
return(pt);
} // IISGetPlatformType